A large cluster of storms mentioned in the update yesterday’s evening, was travelling across the SLGT+ risk area of DAY 1 Outlook for 24/10/2013 and brought excessive rainfall over the region. Some flash floods damage has been reported especially from Liguria so far.

Here are a couple of tabular station data from Liguria, Toscana and Emilia Romagna regions overnight (accumulated rain last 12 hours between 23/10/2013 18 UTC and 24/10/2013 06 UTC):

222.8 mm – Lagdei

172.0 mm – Rocca Sigillina

162.2 mm – Bosco di Corniglio

123.0 mm – La Foce

112.4 mm – Marra

104.8 mm – Volterra

104.0 mm – Ricco del Golfo

86.6 mm – Pracchia

76.2 mm – Gavigno

72.4 mm – Firenzuola

71.1 mm – Treppio

80mm in one hour at La Foce station in Liguria. Source: Meteoliguria.it

Additional storms, including some maintaining multicell clusters and some rotating storms seem likely along the frontal boundary slowly moving towards central Italy today. Threat for heavy rain and a tornado is in place. Storms over Ligurian bay could produce some waterspouts given the weaker wind field and good LL buoyancy.